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Authordc.contributor.authorJara Ulloa, Paola Andrea 
Authordc.contributor.authorCañete Rosales, Paulina 
Authordc.contributor.authorNúñez Vergara, Luis
Authordc.contributor.authorSquella Serrano, Juan 
Cita de ítemdc.identifier.citationJournal of the Brazilian Chemical Society, Volumen 22, Issue 7, 2018, Pages 1271-1278
Abstractdc.description.abstract1-Methyl-4-nitro-2-brominemethylimidazole (4-NimMeBr), was electrochemically reduced on mercury, glassy carbon and multiwalled carbon nanotubes (MWCNT) modified electrodes. 4-NimMeBr was adsorbed on the MWCNT modified electrode thus permitting the implementation of an adsorptive stripping voltammetric (ASV) method. We have used 4-NimMeBr as a prototype electroactive nitro compound to study the effect of both the size of the nanotubes and its functionalization by oxidation. The oxidized MWCNT forms better dispersions than the non-oxidized, producing electrode surface with higher density of MWCNT as was determined by electrochemical mapping using scanning electrochemical microscopy (SECM). Under the optimized conditions, the peak current was proportional to the concentration of 4-NimMeBr in the range of 10 -6 mol L -1 to 10 -4 mol L -1 with detection and quantification limits of 4.41×10 -6 mol L -1 and 6.21×10 -6 mol L -1, respectively. The sensibility of bare electrode was 0.01 μA per μ
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
Link to Licensedc.rights.uri
Sourcedc.sourceJournal of the Brazilian Chemical Society
Keywordsdc.subjectAdsorptive stripping voltammetry
Keywordsdc.subjectCarbon nanotubes
Keywordsdc.subjectScanning electrochemical microscopy
Títulodc.titleAdsorptive stripping voltammetric determination of nitroimidazole derivative on multiwalled carbon nanotube modified electrodes: Influence of size and functionalization of nanotubes
Document typedc.typeArtículo de revista
dcterms.accessRightsdcterms.accessRightsAcceso Abierto
Indexationuchile.indexArtículo de publicación SCOPUS

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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile